want to invest in stocks but have no idea on which one. twitter and go pro stocks are lower these days. is it the right time to invest here? where do you own your stock?

try practce with paper trading (demo) first before you jump into the real trading. Once you are confidence and learn a little bit knowledge of techanial and fundamental analysis then start investing, just my 2 cents.

Stock is record high level like that in 2007. It is not the time to enter the market, it is time to exit. Market pullback is inevitable either in 6mos, 1 yr or 2 yr. When it happens, a lot of folks are going to get hurt badly. Stay in cash.

Stock market acted very strangely after November 10, 2016. Universal practice on trading stock is “buy low sale high". Now all stock prices are up. In future any stupid act made by Deplorable Trump the stock market may react differently; I mean it may go down. If this happens, instead of making money you will be losing.

It's hard to see twtr going back up. Even though they are popular, they are not able to monetize and doubt if it will see brighter days. As far as go pro, one of their drone is being recalled and it depends on how their next camera line up performs. It is a 50 50 stock for my understanding but again, I am very new to this and may be wrong.

If you are a newbie, especially, do not bet your entire inheritance or savings on the market at once. You could start with a small fund as large as a week or so's worth of paycheck and gradually increase the fund at regular intervals (mon, qtr, ann, etc), as you gain more experience and confidence. If I were you, I would educate myself first. I wonder if you are looking to Invest (long-term) or Trade (short-term or intra-day). Fundamental analysis is key if you invest. Technical analysis is for trading. I invest in the stock market. The reason I know I am an investor is that, it does not bother me much even if my holdings have gone down during an open market. But I do not hold a stock forever either. You got to prepare for market corrections and even flash crashes these days also. 

I've seen lots of people here on Sajha bragging about $FNMA (Fannie Mae). I think this is the right year to buy this stock. https://www.youtube.com/watch?v=cpJyAH554M8
Also buy energy stocks or etf.

make it clear are u talking about common stock or preferred stock

Not a good plan to buy FNMA. It already reached it's highest point $4.99.